I am wondering if there is a way to launch 50 Virtualbox Operating systems with one script instead of having to click on every single virtual OS to start it up.
I have been searching around Off and on for a week and have not found a way to do this .

I have had bad luck testing Xen Server, I use other citrix products but vmware has the best vm platform in my opinion. Nice auto boot with delays and shut down with delays. I hope you have those 50 VMs hosted across a bunch of servers, 50 on one server even if its a quad socket is asking for trouble if this is production setup.